Carpet-sweeper attachment.



A. K. BRETTELLE.

CARPET SWEBPEB. ATTACHMENT.

APPLIOATION FILED IEB.21, 1911.

Patented Apr. 2, 1912.

I um y mum INVENTOR Mae/ 0.1: ff. E/EETTELLE WITNESSES UNITE STATESPATENT OFFICE.

AMBROSE K. BRETTELLE, OF CHICAGO, ILLINOIS.

CARPET-SWEEPER- ATTACHMENT.

Specification of Letters Patent.

Application filed February 21, 1911.

Patented Apr. 2, 1912.

Serial No. 610,032.

To all whom it may concern:

Be it known that I, Aansnosu K. Bum- TELLE, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inCarpet-Sweeper Attachments, of which the following is a specification.

The present invention relates to carpet sweepers, and has for its objectto provide a novel and efficient means for attaching an auxiliary brushwhereby it will supplement the action of the main brushes and render thesweeper more efficient and thorough in its action.

A further object of the invention is the provision of a brush attachmentfor carpet sweepers which can be readily applied to any form of sweeper,which is simple and inexpensive in its construction, and which willthoroughly clean and remove dust from the nap of the carpet.

Vith these and other objects in view, the invention consists in certaincombinations and arrangements of the parts as will more fully appear asthe description proceeds, the novel features thereof being pointed outin the appended claims.

For a full understanding of the invention, reference is to be had to thefollowing description and accompanying drawings, in which Figure 1 is anend view of a carpet sweeper provided with the brush attachment, thebrush being shown in full lines in the position assumed when the carpetsweeper is being advanced, and in dotted lines in the position assumedwhen the carpet sweeper is being drawn rearwardly. Fig. 2 is aperspective view showing the brush attachment separated from the sweepercasing, and illustrating one way of inserting and removing the brushback. Fig. 3 is a detail View of the supporting strip and one of thekeepers for the brush.

Corresponding and like parts are referred to in the followingdescription and inclicated in all the views of the drawings by the samereference characters.

Referring to the drawings upon which is illustrated one embodiment ofthe invention, the numeral 1 designates a carpet sweeper which is of theconventional construction, the said carpet sweeper being provided withthe usual rotary brush which is operated through the medium of thewheels 2 when the sweeper is moved back and forth over the carpet. Astrip 3 of wood or other suitable material is detachably applied to oneside of the carpet sweeper in some suitable manner as by means of thescrews 4. Each end of this strip 3 is provided with a keeper A and thesekeepers loosely receive the back of a brush B. This brush normally restsupon its bristles, and is preferably moistened when in use so as toprevent the device from stirring up dust. Then the carpet sweeper isadvanced, the bristle end of the brush B is inclined toward the carpetsweeper, while when the said carpet sweeper is drawn rearwardly, thebristle end of the brush is inclined away from the carpet sweeper.

By reason of the loose mounting of the back of the brush in the keepersA, the brush is free to have a limited vertical and lateral movement andis therefore self-adjusted as the same is carried over the floor. Byreason of this mounting of the brush, the bristle or brush part propermore readily inclines either toward or from the sweeper casing, asindicated in Fig. 1, according as the sweeper is moved forward orbackward with the result of more effectually removing dust and dirt fromthe carpet.

The keepers A are constructed in a peculiar manner, each of the keeperscomprising an upper arm 5 of hook formation and a lower arm 6, of hookformation the extremities of the said arms being extended inwardlytoward each other. The said arms are preferably screwed into the stripand are therefore capable of being turned to throw their extremities outof line, thus opening up the keepers at the front to admit of theinsertion and removal of the brush in that way. The back of the brush Bprojects beyond the bristles at the opposite ends of the brush, theprojecting portion 7 at one end of the brush being longer than theprojecting portion 8 at the opposite end of the brush. The brush andkeepers are so proportioned that when the projecting end 7 of the brushback is inserted in one of the keepers, the brush can be swung intoposition and then shifted longitudinally to bring the other projectingend of the brush back into the opposite keeper. This short projectingend 8 of the brush back is formed with a perforation designed to receivea pin 9, the said pin serving to hold the brush against longitudinalmovement and prevent accidental disengagement thereof from the keepers.The portions of the brush back which fit within the keepers are somewhatsmaller than the said keepers so that the brush is free to have both avertical and lateral movement, the said brush normally resting upon thebristles and tilting in opposite directions when the carpet sweeper ismoved back and forth, as previously described. Sleeves 10 are shown asfitted upon the lower arms 6 of the keepers A, and when the bristlesbecome worn so that the brush no longer operates in a satisfactorymanner, the said sleeves can be removed.

Provision is thereby made for proper adjustment to compensate for thewearing away of the ends of the bristles.

From the foregoing description, it will be obvious that I have provideda simple and eflicient manner for applying an auxiliary brush to acarpet sweeper.

It should be explained that the term bristles as used herein, isintended to in clude any flexible material, preferably fiber,

and it will also be understood that various changes in the form,proportion, and minor details of construction may be resorted to withoutdeparting from the spirit or sacrificing any of the advantages of theinvention.

Having thus described the invention, what I claim as new and desire tosecure by Letters Patent, is

1. A brush attachment for carpet sweepers comprising, in combinationwith the sweeper casing, external brush supports carried with thecasing, a self-adjusting brush having a limited vertical and lateralmovement within said supports, and retaining means for detachablyholding the brush within said supports.

2. A brush attachment for carpet sweepers, comprising, in combinationwith the sweeper casing, external brush supporting keepers eachconsisting of a pair of reversely arranged angle arms, and aself-adjusting brush mounted in said keepers. I

In testimony whereof I hereunto a'fliX my signature in the presence oftwo witnesses.

AMBROSE K. BRETTELLE.

Witnesses:

T. M. WVILLIAMs, EDWARD B. HOLMBERG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

